Demountable rim.



L. E. YoUNIE.

DBMOUNTABLE RIM.

APPLICATION FILED .TUNE 21, 1910. 999,1 38, l Patented July 25, 1911.

2 SHEETS-SHEET 1.

Witwe/@ofzo L. E. YOUNIE.

DBMOUNTABLE RIM.

APPLICATION FILED JUNE 21, 1910. 999, 1 880 Patented July 25, 191.1.

2 SHEETS-SHEET 2.

nutren strains rnfrnnfr oww@ LEWIS EDWARD YOUNIE, 0F PORTLAND, UREGON,ASSIG-NOR TO THE OGORMAN YOUNIECOMPANY, 0F PORTLAND, OREGON, COLOBATION0F OREGON.

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Specication of Letters Patent.

ratenteaauiy e5, lari.l

- Y Application led June 21, 1910. Serial No. 568,153.

to that type of demountable rim on which an inflated tire is carried,and which, in case of injury to the tire on the vehicle, can, withoutdeflation or manipulation of the tire rim,

be placed upon the wheel.

The objectfof the invention is to make a structure by which this may bemore easily accomplished, and one in which slight variations inthecontour or size of the wheel will not interfere with the satisfactoryattachment of the tire rim. f

The invention is illustrated in the accom- Apany/'ing drawings asfollows:

Figure l shows a section on the line 1 1 in Fig. 4; Fig. 2 a sideelevation of the wheel with the tire in place thereon; Fig. 3 a sectionof the rim parts and parts of the wheel on' the line 3 3 on Fig. 2; Fig;4 a section on the line 4 4 in Fig. 3; Fig. 5 a section on the line 5 5in Fig. 4; Fig. 6 a section on the line 1 1 in Fig. 4.

1 marks the wheel hub; 2 the wheel spokes; 3 the wheel felly. These areof ordinary construction, except the felly has openings 4 extending inan axial direction through it for receiving the fastening boltshereinafter described. The fixed rim 5 is in the form of a metalannulus, and is shrunk on the felly in the usual manner. It has thetapered or conical outer 'surface peeially Fig. 3, I have somewhatexaggerated this condition. It willbe observed that where the outersurface a is of slightly less diameter than the inner surface of the.ring,

`the ring 8 is flattened to some extent along t-he portions 10 which arebetween the rivets 9. On the other hand, the rim 6 is Hat- -tenedsomewhat along the portion 1l in which the rivet is placed. In otherwords, these parts are somewhat distorted. The result of this is thatwhen the ring 8 is placed on the rim 5, andv there is a` slightvariation in th-e contour or size, the ring 8, when made of suilicientsize to take in the largest diameter of the rim 5, can be readilyy.forced to its place and by reason of the distortion, makes acomparativelytight t with. the rim 5, even though the outer periphery ofthe rim 5 is somewhat less than the inner periphery of the ring 8. l

It will be seen that as the ring 8 is forced up on the rim 5, assumingthe rim 5 to be a true circle, the rin 8 is made to assume more nearly atrue circle, and on the other hand, the rim 6 is distorted to a greaterextent. By reason of this, the ring 8 makes a suiciently close t and atthe same time permits of this attachment to the wheel rim within theordinary variations found in such rims.' Where it is attempted to makethe-periphery of the two parts exactly the same, and to make a tight t,between the ring and the rim 6, so that there isa-n absolute metal tometal joint, throughout, it is very difficult to get the sizes so nicelcalculated as to permit of the proper positioning of the ring 8 on theri1'n75.`

I prefer to provide the detachable portion, that is the rim 6 and thering 8 with the interlocking devices formed'by the pins l2 which aresecured by riveting on the rim 6, and which extend into in the rim 5.Where these interlocking devices are arranged only at one side of thewheel, the pins may be placed in the perforations with the tire rlm inthe position shown in Fig. 6, and the tire rim then swung into position,in other words the tire rim can be buttoned on to the wheel. Where suchpins are used, they, of course, lock that side of the ring 8 in an axialdirection with relation to the rim 5. If, therefore, the opposite sideof this ring 8 is not brought,

5, the tire will be out of true to that exerforations 13 struction,therefore,` of the ring 8 which same tire rim is intended to'be used'onat readily be understood' thatfit lisjnext to` im# the vring 8 and lriml6- of 'separatejpi'ecea it tent, in other words, will wabble.Thisconpermits it to yield readily so as to allow it t-'o be accuratelylaced axially of the wheel rim is of especia importance Where a lockingdevice is used. y f

The securing bolts'14 extend through the perforations 4 in the -elly.The head of the bolt k15 extends outside of the 'elly, and engages thelarger side of lthe 'rim .5; A washer 16 is'arranged on the -bolt at theopposite end and is of sufficient diameter to overlap and engagthejlargerside of the ring 8. A nut 1 isfnsed'for forcing. the washerinto place, andconsequently; forcing'4 the ringlS up'on thexr'ini` 5 toits position. y

I prefer vto form the rim Y6 and 8 of separate pieces, in other words,laminate the tire rim andV so secure these parts;- together that theirsurfaces may move .onv eaclraother as they are `forced?intoposition.;v-It willv possible to make the fixed 5'so that it forms, an exactcircle." vBy making is more exible and more 'readily yieldsvtoYthexdistortion necessaryto follow (the con@ tour of the wheel -rim. Thisis `of great, importance-when it isundersto'od thatfthe least any.wheelolc the same vehicle. ByV using twodowel pins 12 forming aninterlockmg rim, this part A'is-'compelled to take t `a position'parallelwith-the wheel rim.

` .Qopies: if! thispatent maybe obtained for ve cents n Y, Y* y YWashington I. c.

Where the dowely pins are arranged close of a tirel rim; an intermediatering secured to the tireV rim with the vmajor portion of its .surfacefree to move relatively to the tire rim as the tire rim and ring areexed,

saidrring having` an inner conical surface,

and beingrthin radially relatively to its width to permit of( itsyielding to the form of `any irregularity in the fixed rim; and meansfor securing the'ring on the .fixed vrim.' v- 2Q InV a demountable rim,the combination bof a Afixed lrim Yhaving "a conical surface; a

-tire rim ;V an intermediate ring having an outer' periphery fittingloosely within the inner rperiphery of the tire rim,'and,secured to fthetire -rim only at points,'s`aid ring having aninner'conical surface, andbeing thin radially relativelyto its width to permit of Vits ylelding'ina yradial direction; and means` 'forsecurifngl thering upon the fixedrim.

In .testimony whereof, l.I have'v hereunto set `1ny}hand in the presenceof two subscribe;

LEWIS EDWARD /YoUNIn Witnesses: 4

VGr. W. STAPLETOM E. F. SHUMAKEm ing witnesses.

each, by addressing the f Commissioner of Patents.

